Engines & Engine Parts

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...

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Jesel Rocker Arm Shims

Jesel offers rocker arm shaft shims in a variety of applications, including many Chevrolet small and big block engines from 1955 and up. The spacers come in a kit with various thicknesses. They're color-coded steel so you can distinguish the size needed for your application. These accessories assist in mounting your rocker stand assemblies. Order the shims recommended for your year, make, and engine family.

4.0 out of 5 stars ( 7 )

$33.20

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$68.90

Harland Sharp Heavy-Duty Roller Rockers

Don't trust your engine investment to just any no-name rocker manufacturer. Harland Sharp heavy-duty roller rockers are specifically designed for the heavy spring pressure and high-lift geometry of highly modified engines. They're also engineered with wider bodies, resulting in increased rocker strength and longevity. So, when your engine requires extra durability, use Harland Sharp heavy-duty roller rockers.

4.7 out of 5 stars ( 60 )

$1,425.99

Summit Racing™ Valve Covers

No high price tags, just top-notch quality for the budget conscious builder. This huge selection of Summit Racing™ valve covers feature durable, thick steel construction and are offered in many options to help you find exactly what you want to make your vehicle's engine bay stand out. Available styles include low-profile, stock, or tall heights; center bolt or perimeter bolt mounting; several different finishes, including chrome; plain or with designs or logos, including our Summit™ logo. Choose the fit and finish you prefer.

4.27 out of 5 stars ( 334 )

$43.99

Innovators West Drive Pulley Idler Shafts

When upgrading your 8- or 10-rib drive systems, Innovators West drive pulley idler shafts or stands are required for the proper positioning of the smooth idler in place of the factory idler. These shafts or stands are included with the Innovators 8- and 10-rib conversions and are also offered individually as replacements. Maintain the performance of your drive pulleys with components from Innovators West.

5.0 out of 5 stars ( 1 )

$14.80

Harland Sharp Original Roller Rockers

If you plan on adding performance to your street machine or building a serious racer, Harland Sharp Original Series roller rockers are recommended for you. Using the very latest manufacturing technology and only the very finest materials, the Original Series rockers incorporate race-proven enhancements, such as improved strength, performance, and lighter weight over conventional rocker arm designs. Don't settle for any old rocker arm--go with a true leader in roller rocker arm technology--Harland Sharp.

4.62 out of 5 stars ( 181 )

$999.99

PRW Platinum Series Shaft-Mount Rocker Arms

PRW Platinum Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The Performance Quotient PQx rocker arms are made from quality alloy extrusions. These systems include CNC-machined billet steel pedestals, and ground, steel alloy rocker shafts—along with PRW SCM-4135 alloy steel fasteners, studs, and bolts. PRW Platinum Series shaft-mount rocker complete kits include all the components and hardware required for a professional installation. Order the system recommended for your specific vehicle and engine size. Features, items, and specs: * Several systems to suit many cam profiles * 8 pairs of shaft-mount rockers with adjustable cup-style valve lash adjusters * SAE 42100 full complement precision needle and cage roller bearings * Rated up to 750 lbs. open spring pressure * Internal oiling system for long-lasting performance

4.3 out of 5 stars ( 10 )

$779.24

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